They need to raise the UP over the LOSSAN/BNSF main with a grade separation, and down into Los Nietos. I have been surprised that there have not been more "rail-rail" congestion related problems here. There are just not the volumes of SP era haulers and ore trains that used to cross this sometimes hourly, but with present and future BNSF and LOSSAN train volumes, it is still needed, especially if a 110 mph. "HSR" speed.

This level of HS LOSSAN and ML service is doable here. Grade separation of the rail lines does have clearance issues with the freeway bridges. The connection to the port here is out of service as this routing to the ports has been replaced by the Alameda Corridor, so you only have to worry about getting over to Lost Nuts. This is something that should be considered as part of "alternatives analysis" in an integrated plan to grade separate the whole segment of this corridor (add as much 4 track as possible). Which will likely be way less costly than what has been proposed by the latest CHSRA plan recently presented.

The CHSRA is currently wasting millions of taxpayer dollars in consultant studies on this segment, for the "so-called" LA-Anaheim CAHSRA fiasco. They just got crucified in the press for coming up with a plan that is not going to fully grade the whole corridor, but only "their" tracks.